The here presented study analyses the combined role of geological and morphological features on the evolution of an ongoing gravitational slope deformation, located in the western portion of the Mt. Genzana Ridge (central Italy). The latter partly evolved in a huge rock-avalanche responsible for damming the Tasso River valley and originating the Scanno Lake. A morpho-structural multi-stage model of the Quaternary evolution of the slope was reconstructed through geomorphological analyses and a time-dependent morphometric approach. Based on the morpho-evolutionary model we performed a stress-strain numerical modeling to back-analyze the processes that led to the onset of the rockslope deformation. The numerical analysis took into account: i) age constraints derived from morpho-evolutionary model; ii) engineering-geological model based on equivalent continuum approach and a statistical distribution of geomechanical parameter together with targeted laboratory tests; iii) regional stress-field regime variation connected with tectonic activity; iiii) viscous time-dependent behavior. In this paper the results of the multi-modeling approach are presented presents and discussed.

Multi-modelling for a slope-scale deformation evolving from mass rock creep to rock avalanche / DELLA SETA, Marta; Esposito, Carlo; Marmoni, Gianmarco; Martino, Salvatore; SCARASCIA MUGNOZZA, Gabriele; Troiani, Francesco. - STAMPA. - (2016), pp. 805-812. (Intervento presentato al convegno 12th International Symposium on Landslides - Landslides and Engineered Slopes. Experience, Theory and Practice tenutosi a Napoli nel 12-19 June 2016) [10.1201/b21520-94].

Multi-modelling for a slope-scale deformation evolving from mass rock creep to rock avalanche

DELLA SETA, Marta;ESPOSITO, CARLO;MARMONI, GIANMARCO
;
MARTINO, Salvatore;SCARASCIA MUGNOZZA, Gabriele;TROIANI, FRANCESCO
2016

Abstract

The here presented study analyses the combined role of geological and morphological features on the evolution of an ongoing gravitational slope deformation, located in the western portion of the Mt. Genzana Ridge (central Italy). The latter partly evolved in a huge rock-avalanche responsible for damming the Tasso River valley and originating the Scanno Lake. A morpho-structural multi-stage model of the Quaternary evolution of the slope was reconstructed through geomorphological analyses and a time-dependent morphometric approach. Based on the morpho-evolutionary model we performed a stress-strain numerical modeling to back-analyze the processes that led to the onset of the rockslope deformation. The numerical analysis took into account: i) age constraints derived from morpho-evolutionary model; ii) engineering-geological model based on equivalent continuum approach and a statistical distribution of geomechanical parameter together with targeted laboratory tests; iii) regional stress-field regime variation connected with tectonic activity; iiii) viscous time-dependent behavior. In this paper the results of the multi-modeling approach are presented presents and discussed.
2016
12th International Symposium on Landslides - Landslides and Engineered Slopes. Experience, Theory and Practice
slope stability; numerical modelling; rock mass creep
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Multi-modelling for a slope-scale deformation evolving from mass rock creep to rock avalanche / DELLA SETA, Marta; Esposito, Carlo; Marmoni, Gianmarco; Martino, Salvatore; SCARASCIA MUGNOZZA, Gabriele; Troiani, Francesco. - STAMPA. - (2016), pp. 805-812. (Intervento presentato al convegno 12th International Symposium on Landslides - Landslides and Engineered Slopes. Experience, Theory and Practice tenutosi a Napoli nel 12-19 June 2016) [10.1201/b21520-94].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/875749
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